I am able to convert using a patched version of vhd_utils, however the patch is old and unsupported by the people at xen.
The patched version also failed to work on fedora20 or ubuntu12.04. Only the version built on ubuntu14.04 was able to convert from qcow2 to xen properly.

I'd like to know what people are using to convert kvm to xen, or if I missed something.

Do you have a development xenserver to test this image on? If your image works on the bare xenserver install then we can point you to the right direction to get necessary add-ons to be added to the image for making it work with Rackspace OpenCloud.